class type plugin = object
.. end
Plugins are extensions of the Netplex system that run in the controller
and can be invoked from containers
method required : plugin list
Required plugins
method program : Rpc_program.t
The RPC program structure on which the messaging bases. The program,
version and procedure numbers are ignored
method ctrl_added : controller -> unit
This method is invoked when the plugin has been added to this
controller. Note that plugins can be added to several controllers.
method ctrl_unplugged : controller -> unit
The plugin has been unplugged from this controller
method ctrl_receive_call : controller ->
container_id ->
string -> Netxdr.xdr_value -> (Netxdr.xdr_value option -> unit) -> unit
ctrl_receive_call ctrl cid procname procarg emit
:
This method is called in the controller context ctrl
when a procedure
named procname
is called. In procarg
the argument of the
procedure is passed. cid
is the container ID from where the
call originates. To pass the result r
of the call back to the caller,
is is required to call emit (Some r)
(either immediately, or at
some time in the future). By calling emit None
, an error condition
is propagated back to the caller.
method ctrl_container_finished : controller -> container_id -> bool -> unit
This method is called when a container finishes
(after post_finish_hook
).
The boolean is true if the container is the last of the terminated
socket service.